Improvement in machinery for manufacturing brushes



UNITED STATES PATENT OEEEICE.

GEORGE WILLETT, OF ST. ALBANS, VERMONT.

IMPROVEMENT IN MACHINERY FOR MANUFACTURING BRUSHES.

Specification forming part of Letters Patent No. 119,440, datedSeptember 26, 1871; antedated September 14, 1871.

To all whom it may concern:

Be it known that I, GEORGE WiLLETT, of St. Albans, in the county ofFranklin and State of Vermont, have invented a new and usefulImprovement in Machinery for Manufacturing Brushes 5 and I do herebydeclare that the following is a full, clear, and exact descriptionthereof, which will enable others skilled in the art to make and use thesame, reference being had to the accompanying drawing forming part ofthis specification.

This invention relates to a new and useful improvement in machinery formanufacturing brushes for painting and other purposes; and consists in amachine for driving the handles into brushes, the parts beingconstructed, arranged, and made to operate as hereinafter described.

In the accompanying drawing, Figure 1 represents a side elevation of themachine, partly in section. Fig. 2 is avertieal section taken on theline :t of Fig. l. Fig. 3 is a detail view of the clamp for holding thebrush. Fig. 4 is a section of the clamp for holding the handle, taken onthe line y y of Fig. l.

Similar letters of reference indicate correspond ing parts.

A is a bed piece or platform. B is a stand rigidly attached to the bedpiece A, which stand supports the guide for the plunger, and also thedriving-wheel. The handle-clamp C is pivoted to the under side of thearm D, which arm supports the plunger-guide E. F is the plunger. G isthe driving-wheel, the face of which is provided with dovetail orcovered cross-grooves H H, containing slides I I, to which theconnecting-rod J is attached by pivots, as seen in Fig. 2. Theconnection of the rod J with the top of the plunger F is seen in dottedlines in Fig. 2, and at K in Fig. l. K is a lever attached to the wheelG, by means of which the latter is turned and the plunger operated. I amaware that the grooved wheel movement is not in itself new, as it is oneof the well-known modes of converting rotary into rectilinear mbt-ion,but its application to this particular purpose is new and exceedinglyuseful, as by one-fourth of a revolution of the wheel I obtain a strokeof the plunger equal to onehalf of its diameter. With the hand-lever Kthis motion or movement of the plunger is very easily produced. L is thebrush-clamp, consist ing of two parts hinged together, one part beingfast to the bed-plate; the other part turns on the hinge. M is aneccentric lever, which operates by hand to force up the loose portion ofthe clamp for inclosing and holding the brush for the insertion of thehandle, as seen in Fig. 2. N is an elastic bed, of India rubber or othersuitable substance, with a small hole through its center whichcorresponds in position with the center of a hole through the bed-plate.(See Fig. 2.) The handle-clamp C is composed of two springs, each havinga semieircular tubular opening in its end. These two semicircularopenings form a tube which receives the brush-handle. The elasticity' ofthe springs allows handles of different sizes to be inserted and heldinupright position. The handle-clamp swings on its pivot for the insertionofthe handle, and is then moved under the arm and stopped by the lug O,so that the butt end of the handle will be directly beneath the plunger,as seen in the drawing.

The' operation will be readily understood from Fig. 2. When the point ofthe handle reaches the elastic bed'N-in the brush-clamp the hole throughthe bed, by virtue of its elasticity, will expand or adjust itself tothe size of the handle. P represents the brush-handle, and R the brush.S is the ferrule around the brush. This machine takes the brush afterthis ferrule has been put on, and"` the handle is inserted thereby inthe most accurate and expeditions manner.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- 1. The brush-clamp L, with the elastic bed N andeccentric lever M, arranged to operate substantially as and for thepurposes described.

2. The handle-clamp O, constructed and arranged to operate substantiallyas and for the purposes described.

3. 1n combination with machinery for making brushes, the wheel G andmode of operating the plunger F, substantially as shown and described.

4:. The combination of the clamps C and L, plunger F, and wheel Gr,substantially as and for the purposes herein shown and specied.

GEORGE WILLETT.

Witnesses:

HoEL G. LEE, M. J. HILL.

